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"question": {
"questionId": "1572",
"questionFrontendId": "1476",
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"title": "Subrectangle Queries",
"titleSlug": "subrectangle-queries",
"content": "<p>Implement the class <code>SubrectangleQueries</code> which receives a <code>rows x cols</code> rectangle as a matrix of integers in the constructor and supports two methods:</p>\n\n<p>1.<code> updateSubrectangle(int row1, int col1, int row2, int col2, int newValue)</code></p>\n\n<ul>\n\t<li>Updates all values with <code>newValue</code> in the subrectangle whose upper left coordinate is <code>(row1,col1)</code> and bottom right coordinate is <code>(row2,col2)</code>.</li>\n</ul>\n\n<p>2.<code> getValue(int row, int col)</code></p>\n\n<ul>\n\t<li>Returns the current value of the coordinate <code>(row,col)</code> from the rectangle.</li>\n</ul>\n\n<p> </p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input</strong>\n["SubrectangleQueries","getValue","updateSubrectangle","getValue","getValue","updateSubrectangle","getValue","getValue"]\n[[[[1,2,1],[4,3,4],[3,2,1],[1,1,1]]],[0,2],[0,0,3,2,5],[0,2],[3,1],[3,0,3,2,10],[3,1],[0,2]]\n<strong>Output</strong>\n[null,1,null,5,5,null,10,5]\n<strong>Explanation</strong>\nSubrectangleQueries subrectangleQueries = new SubrectangleQueries([[1,2,1],[4,3,4],[3,2,1],[1,1,1]]); \n// The initial rectangle (4x3) looks like:\n// 1 2 1\n// 4 3 4\n// 3 2 1\n// 1 1 1\nsubrectangleQueries.getValue(0, 2); // return 1\nsubrectangleQueries.updateSubrectangle(0, 0, 3, 2, 5);\n// After this update the rectangle looks like:\n// 5 5 5\n// 5 5 5\n// 5 5 5\n// 5 5 5 \nsubrectangleQueries.getValue(0, 2); // return 5\nsubrectangleQueries.getValue(3, 1); // return 5\nsubrectangleQueries.updateSubrectangle(3, 0, 3, 2, 10);\n// After this update the rectangle looks like:\n// 5 5 5\n// 5 5 5\n// 5 5 5\n// 10 10 10 \nsubrectangleQueries.getValue(3, 1); // return 10\nsubrectangleQueries.getValue(0, 2); // return 5\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input</strong>\n["SubrectangleQueries","getValue","updateSubrectangle","getValue","getValue","updateSubrectangle","getValue"]\n[[[[1,1,1],[2,2,2],[3,3,3]]],[0,0],[0,0,2,2,100],[0,0],[2,2],[1,1,2,2,20],[2,2]]\n<strong>Output</strong>\n[null,1,null,100,100,null,20]\n<strong>Explanation</strong>\nSubrectangleQueries subrectangleQueries = new SubrectangleQueries([[1,1,1],[2,2,2],[3,3,3]]);\nsubrectangleQueries.getValue(0, 0); // return 1\nsubrectangleQueries.updateSubrectangle(0, 0, 2, 2, 100);\nsubrectangleQueries.getValue(0, 0); // return 100\nsubrectangleQueries.getValue(2, 2); // return 100\nsubrectangleQueries.updateSubrectangle(1, 1, 2, 2, 20);\nsubrectangleQueries.getValue(2, 2); // return 20\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li>There will be at most <code><font face=\"monospace\">500</font></code> operations considering both methods: <code>updateSubrectangle</code> and <code>getValue</code>.</li>\n\t<li><code>1 <= rows, cols <= 100</code></li>\n\t<li><code>rows == rectangle.length</code></li>\n\t<li><code>cols == rectangle[i].length</code></li>\n\t<li><code>0 <= row1 <= row2 < rows</code></li>\n\t<li><code>0 <= col1 <= col2 < cols</code></li>\n\t<li><code>1 <= newValue, rectangle[i][j] <= 10^9</code></li>\n\t<li><code>0 <= row < rows</code></li>\n\t<li><code>0 <= col < cols</code></li>\n</ul>\n",
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"exampleTestcases": "[\"SubrectangleQueries\",\"getValue\",\"updateSubrectangle\",\"getValue\",\"getValue\",\"updateSubrectangle\",\"getValue\",\"getValue\"]\r\n[[[[1,2,1],[4,3,4],[3,2,1],[1,1,1]]],[0,2],[0,0,3,2,5],[0,2],[3,1],[3,0,3,2,10],[3,1],[0,2]]\r\n[\"SubrectangleQueries\",\"getValue\",\"updateSubrectangle\",\"getValue\",\"getValue\",\"updateSubrectangle\",\"getValue\"]\r\n[[[[1,1,1],[2,2,2],[3,3,3]]],[0,0],[0,0,2,2,100],[0,0],[2,2],[1,1,2,2,20],[2,2]]\r",
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"lang": "C++",
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"code": "class SubrectangleQueries {\npublic:\n SubrectangleQueries(vector<vector<int>>& rectangle) {\n \n }\n \n void updateSubrectangle(int row1, int col1, int row2, int col2, int newValue) {\n \n }\n \n int getValue(int row, int col) {\n \n }\n};\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * SubrectangleQueries* obj = new SubrectangleQueries(rectangle);\n * obj->updateSubrectangle(row1,col1,row2,col2,newValue);\n * int param_2 = obj->getValue(row,col);\n */",
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"lang": "Java",
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"code": "class SubrectangleQueries {\n\n public SubrectangleQueries(int[][] rectangle) {\n \n }\n \n public void updateSubrectangle(int row1, int col1, int row2, int col2, int newValue) {\n \n }\n \n public int getValue(int row, int col) {\n \n }\n}\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * SubrectangleQueries obj = new SubrectangleQueries(rectangle);\n * obj.updateSubrectangle(row1,col1,row2,col2,newValue);\n * int param_2 = obj.getValue(row,col);\n */",
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"code": "class SubrectangleQueries(object):\n\n def __init__(self, rectangle):\n \"\"\"\n :type rectangle: List[List[int]]\n \"\"\"\n \n\n def updateSubrectangle(self, row1, col1, row2, col2, newValue):\n \"\"\"\n :type row1: int\n :type col1: int\n :type row2: int\n :type col2: int\n :type newValue: int\n :rtype: None\n \"\"\"\n \n\n def getValue(self, row, col):\n \"\"\"\n :type row: int\n :type col: int\n :rtype: int\n \"\"\"\n \n\n\n# Your SubrectangleQueries object will be instantiated and called as such:\n# obj = SubrectangleQueries(rectangle)\n# obj.updateSubrectangle(row1,col1,row2,col2,newValue)\n# param_2 = obj.getValue(row,col)",
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"lang": "Python3",
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"code": "class SubrectangleQueries:\n\n def __init__(self, rectangle: List[List[int]]):\n \n\n def updateSubrectangle(self, row1: int, col1: int, row2: int, col2: int, newValue: int) -> None:\n \n\n def getValue(self, row: int, col: int) -> int:\n \n\n\n# Your SubrectangleQueries object will be instantiated and called as such:\n# obj = SubrectangleQueries(rectangle)\n# obj.updateSubrectangle(row1,col1,row2,col2,newValue)\n# param_2 = obj.getValue(row,col)",
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"lang": "C",
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"code": "\n\n\ntypedef struct {\n \n} SubrectangleQueries;\n\n\nSubrectangleQueries* subrectangleQueriesCreate(int** rectangle, int rectangleSize, int* rectangleColSize) {\n \n}\n\nvoid subrectangleQueriesUpdateSubrectangle(SubrectangleQueries* obj, int row1, int col1, int row2, int col2, int newValue) {\n \n}\n\nint subrectangleQueriesGetValue(SubrectangleQueries* obj, int row, int col) {\n \n}\n\nvoid subrectangleQueriesFree(SubrectangleQueries* obj) {\n \n}\n\n/**\n * Your SubrectangleQueries struct will be instantiated and called as such:\n * SubrectangleQueries* obj = subrectangleQueriesCreate(rectangle, rectangleSize, rectangleColSize);\n * subrectangleQueriesUpdateSubrectangle(obj, row1, col1, row2, col2, newValue);\n \n * int param_2 = subrectangleQueriesGetValue(obj, row, col);\n \n * subrectangleQueriesFree(obj);\n*/",
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"lang": "C#",
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"code": "public class SubrectangleQueries {\n\n public SubrectangleQueries(int[][] rectangle) {\n \n }\n \n public void UpdateSubrectangle(int row1, int col1, int row2, int col2, int newValue) {\n \n }\n \n public int GetValue(int row, int col) {\n \n }\n}\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * SubrectangleQueries obj = new SubrectangleQueries(rectangle);\n * obj.UpdateSubrectangle(row1,col1,row2,col2,newValue);\n * int param_2 = obj.GetValue(row,col);\n */",
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"lang": "JavaScript",
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"code": "/**\n * @param {number[][]} rectangle\n */\nvar SubrectangleQueries = function(rectangle) {\n \n};\n\n/** \n * @param {number} row1 \n * @param {number} col1 \n * @param {number} row2 \n * @param {number} col2 \n * @param {number} newValue\n * @return {void}\n */\nSubrectangleQueries.prototype.updateSubrectangle = function(row1, col1, row2, col2, newValue) {\n \n};\n\n/** \n * @param {number} row \n * @param {number} col\n * @return {number}\n */\nSubrectangleQueries.prototype.getValue = function(row, col) {\n \n};\n\n/** \n * Your SubrectangleQueries object will be instantiated and called as such:\n * var obj = new SubrectangleQueries(rectangle)\n * obj.updateSubrectangle(row1,col1,row2,col2,newValue)\n * var param_2 = obj.getValue(row,col)\n */",
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"lang": "Ruby",
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"code": "class SubrectangleQueries\n\n=begin\n :type rectangle: Integer[][]\n=end\n def initialize(rectangle)\n \n end\n\n\n=begin\n :type row1: Integer\n :type col1: Integer\n :type row2: Integer\n :type col2: Integer\n :type new_value: Integer\n :rtype: Void\n=end\n def update_subrectangle(row1, col1, row2, col2, new_value)\n \n end\n\n\n=begin\n :type row: Integer\n :type col: Integer\n :rtype: Integer\n=end\n def get_value(row, col)\n \n end\n\n\nend\n\n# Your SubrectangleQueries object will be instantiated and called as such:\n# obj = SubrectangleQueries.new(rectangle)\n# obj.update_subrectangle(row1, col1, row2, col2, new_value)\n# param_2 = obj.get_value(row, col)",
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"lang": "Swift",
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"code": "\nclass SubrectangleQueries {\n\n init(_ rectangle: [[Int]]) {\n \n }\n \n func updateSubrectangle(_ row1: Int, _ col1: Int, _ row2: Int, _ col2: Int, _ newValue: Int) {\n \n }\n \n func getValue(_ row: Int, _ col: Int) -> Int {\n \n }\n}\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * let obj = SubrectangleQueries(rectangle)\n * obj.updateSubrectangle(row1, col1, row2, col2, newValue)\n * let ret_2: Int = obj.getValue(row, col)\n */",
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"lang": "Go",
"langSlug": "golang",
"code": "type SubrectangleQueries struct {\n \n}\n\n\nfunc Constructor(rectangle [][]int) SubrectangleQueries {\n \n}\n\n\nfunc (this *SubrectangleQueries) UpdateSubrectangle(row1 int, col1 int, row2 int, col2 int, newValue int) {\n \n}\n\n\nfunc (this *SubrectangleQueries) GetValue(row int, col int) int {\n \n}\n\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * obj := Constructor(rectangle);\n * obj.UpdateSubrectangle(row1,col1,row2,col2,newValue);\n * param_2 := obj.GetValue(row,col);\n */",
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"lang": "Scala",
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"code": "class SubrectangleQueries(_rectangle: Array[Array[Int]]) {\n\n def updateSubrectangle(row1: Int, col1: Int, row2: Int, col2: Int, newValue: Int) {\n \n }\n\n def getValue(row: Int, col: Int): Int = {\n \n }\n\n}\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * var obj = new SubrectangleQueries(rectangle)\n * obj.updateSubrectangle(row1,col1,row2,col2,newValue)\n * var param_2 = obj.getValue(row,col)\n */",
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"lang": "Kotlin",
"langSlug": "kotlin",
"code": "class SubrectangleQueries(rectangle: Array<IntArray>) {\n\n fun updateSubrectangle(row1: Int, col1: Int, row2: Int, col2: Int, newValue: Int) {\n \n }\n\n fun getValue(row: Int, col: Int): Int {\n \n }\n\n}\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * var obj = SubrectangleQueries(rectangle)\n * obj.updateSubrectangle(row1,col1,row2,col2,newValue)\n * var param_2 = obj.getValue(row,col)\n */",
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"lang": "Rust",
"langSlug": "rust",
"code": "struct SubrectangleQueries {\n\n}\n\n\n/** \n * `&self` means the method takes an immutable reference.\n * If you need a mutable reference, change it to `&mut self` instead.\n */\nimpl SubrectangleQueries {\n\n fn new(rectangle: Vec<Vec<i32>>) -> Self {\n \n }\n \n fn update_subrectangle(&self, row1: i32, col1: i32, row2: i32, col2: i32, new_value: i32) {\n \n }\n \n fn get_value(&self, row: i32, col: i32) -> i32 {\n \n }\n}\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * let obj = SubrectangleQueries::new(rectangle);\n * obj.update_subrectangle(row1, col1, row2, col2, newValue);\n * let ret_2: i32 = obj.get_value(row, col);\n */",
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"lang": "PHP",
"langSlug": "php",
"code": "class SubrectangleQueries {\n /**\n * @param Integer[][] $rectangle\n */\n function __construct($rectangle) {\n \n }\n \n /**\n * @param Integer $row1\n * @param Integer $col1\n * @param Integer $row2\n * @param Integer $col2\n * @param Integer $newValue\n * @return NULL\n */\n function updateSubrectangle($row1, $col1, $row2, $col2, $newValue) {\n \n }\n \n /**\n * @param Integer $row\n * @param Integer $col\n * @return Integer\n */\n function getValue($row, $col) {\n \n }\n}\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * $obj = SubrectangleQueries($rectangle);\n * $obj->updateSubrectangle($row1, $col1, $row2, $col2, $newValue);\n * $ret_2 = $obj->getValue($row, $col);\n */",
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"lang": "TypeScript",
"langSlug": "typescript",
"code": "class SubrectangleQueries {\n constructor(rectangle: number[][]) {\n\n }\n\n updateSubrectangle(row1: number, col1: number, row2: number, col2: number, newValue: number): void {\n\n }\n\n getValue(row: number, col: number): number {\n\n }\n}\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * var obj = new SubrectangleQueries(rectangle)\n * obj.updateSubrectangle(row1,col1,row2,col2,newValue)\n * var param_2 = obj.getValue(row,col)\n */",
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"lang": "Racket",
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"code": "(define subrectangle-queries%\n (class object%\n (super-new)\n\n ; rectangle : (listof (listof exact-integer?))\n (init-field\n rectangle)\n \n ; update-subrectangle : exact-integer? exact-integer? exact-integer? exact-integer? exact-integer? -> void?\n (define/public (update-subrectangle row1 col1 row2 col2 newValue)\n\n )\n ; get-value : exact-integer? exact-integer? -> exact-integer?\n (define/public (get-value row col)\n\n )))\n\n;; Your subrectangle-queries% object will be instantiated and called as such:\n;; (define obj (new subrectangle-queries% [rectangle rectangle]))\n;; (send obj update-subrectangle row1 col1 row2 col2 new-value)\n;; (define param_2 (send obj get-value row col))",
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"hints": [
"Use brute force to update a rectangle and, response to the queries in O(1)."
],
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"sampleTestCase": "[\"SubrectangleQueries\",\"getValue\",\"updateSubrectangle\",\"getValue\",\"getValue\",\"updateSubrectangle\",\"getValue\",\"getValue\"]\r\n[[[[1,2,1],[4,3,4],[3,2,1],[1,1,1]]],[0,2],[0,0,3,2,5],[0,2],[3,1],[3,0,3,2,10],[3,1],[0,2]]\r",
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Java 8 features such as lambda expressions and stream API can be used. </p>\\r\\n\\r\\n<p>Most standard library headers are already included automatically for your convenience.</p>\\r\\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>\"], \"python\": [\"Python\", \"<p><code>Python 2.7.12</code>.</p>\\r\\n\\r\\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\\\"https://docs.python.org/2/library/array.html\\\" target=\\\"_blank\\\">array</a>, <a href=\\\"https://docs.python.org/2/library/bisect.html\\\" target=\\\"_blank\\\">bisect</a>, <a href=\\\"https://docs.python.org/2/library/collections.html\\\" target=\\\"_blank\\\">collections</a>. If you need more libraries, you can import it yourself.</p>\\r\\n\\r\\n<p>For Map/TreeMap data structure, you may use <a href=\\\"http://www.grantjenks.com/docs/sortedcontainers/\\\" target=\\\"_blank\\\">sortedcontainers</a> library.</p>\\r\\n\\r\\n<p>Note that Python 2.7 <a href=\\\"https://www.python.org/dev/peps/pep-0373/\\\" target=\\\"_blank\\\">will not be maintained past 2020</a>. For the latest Python, please choose Python3 instead.</p>\"], \"c\": [\"C\", \"<p>Compiled with <code>gcc 8.2</code> using the gnu99 standard.</p>\\r\\n\\r\\n<p>Your code is compiled with level one optimization (<code>-O1</code>). <a href=\\\"https://github.com/google/sanitizers/wiki/AddressSanitizer\\\" target=\\\"_blank\\\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\\r\\n\\r\\n<p>Most standard library headers are already included automatically for your convenience.</p>\\r\\n\\r\\n<p>For hash table operations, you may use <a href=\\\"https://troydhanson.github.io/uthash/\\\" target=\\\"_blank\\\">uthash</a>. \\\"uthash.h\\\" is included by default. Below are some examples:</p>\\r\\n\\r\\n<p><b>1. Adding an item to a hash.</b>\\r\\n<pre>\\r\\nstruct hash_entry {\\r\\n int id; /* we'll use this field as the key */\\r\\n char name[10];\\r\\n UT_hash_handle hh; /* makes this structure hashable */\\r\\n};\\r\\n\\r\\nstruct hash_entry *users = NULL;\\r\\n\\r\\nvoid add_user(struct hash_entry *s) {\\r\\n HASH_ADD_INT(users, id, s);\\r\\n}\\r\\n</pre>\\r\\n</p>\\r\\n\\r\\n<p><b>2. Looking up an item in a hash:</b>\\r\\n<pre>\\r\\nstruct hash_entry *find_user(int user_id) {\\r\\n struct hash_entry *s;\\r\\n HASH_FIND_INT(users, &user_id, s);\\r\\n return s;\\r\\n}\\r\\n</pre>\\r\\n</p>\\r\\n\\r\\n<p><b>3. Deleting an item in a hash:</b>\\r\\n<pre>\\r\\nvoid delete_user(struct hash_entry *user) {\\r\\n HASH_DEL(users, user); \\r\\n}\\r\\n</pre>\\r\\n</p>\"], \"csharp\": [\"C#\", \"<p><a href=\\\"https://docs.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-9\\\" target=\\\"_blank\\\">C# 10 with .NET 6 runtime</a></p>\\r\\n\\r\\n<p>Your code is compiled with debug flag enabled (<code>/debug</code>).</p>\"], \"javascript\": [\"JavaScript\", \"<p><code>Node.js 16.13.2</code>.</p>\\r\\n\\r\\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\\\"http://node.green/\\\" target=\\\"_blank\\\">new ES6 features</a>.</p>\\r\\n\\r\\n<p><a href=\\\"https://lodash.com\\\" target=\\\"_blank\\\">lodash.js</a> library is included by default.</p>\\r\\n\\r\\n<p>For Priority Queue / Queue data structures, you may use <a href=\\\"https://github.com/datastructures-js/priority-queue\\\" target=\\\"_blank\\\">datastructures-js/priority-queue</a> and <a href=\\\"https://github.com/datastructures-js/queue\\\" target=\\\"_blank\\\">datastructures-js/queue</a>.</p>\"], \"ruby\": [\"Ruby\", \"<p><code>Ruby 3.1</code></p>\\r\\n\\r\\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>\"], \"swift\": [\"Swift\", \"<p><code>Swift 5.5.2</code>.</p>\"], \"golang\": [\"Go\", \"<p><code>Go 1.17.6</code>.</p>\\r\\n\\r\\n<p>Support <a href=\\\"https://godoc.org/github.com/emirpasic/gods\\\" target=\\\"_blank\\\">https://godoc.org/github.com/emirpasic/gods</a> library.</p>\"], \"python3\": [\"Python3\", \"<p><code>Python 3.10</code>.</p>\\r\\n\\r\\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\\\"https://docs.python.org/3/library/array.html\\\" target=\\\"_blank\\\">array</a>, <a href=\\\"https://docs.python.org/3/library/bisect.html\\\" target=\\\"_blank\\\">bisect</a>, <a href=\\\"https://docs.python.org/3/library/collections.html\\\" target=\\\"_blank\\\">collections</a>. If you need more libraries, you can import it yourself.</p>\\r\\n\\r\\n<p>For Map/TreeMap data structure, you may use <a href=\\\"http://www.grantjenks.com/docs/sortedcontainers/\\\" target=\\\"_blank\\\">sortedcontainers</a> library.</p>\"], \"scala\": [\"Scala\", \"<p><code>Scala 2.13.7</code>.</p>\"], \"kotlin\": [\"Kotlin\", \"<p><code>Kotlin 1.3.10</code>.</p>\"], \"rust\": [\"Rust\", \"<p><code>Rust 1.58.1</code></p>\\r\\n\\r\\n<p>Supports <a href=\\\"https://crates.io/crates/rand\\\" target=\\\"_blank\\\">rand </a> v0.6\\u00a0from crates.io</p>\"], \"php\": [\"PHP\", \"<p><code>PHP 8.1</code>.</p>\\r\\n<p>With bcmath module</p>\"], \"typescript\": [\"Typescript\", \"<p><code>TypeScript 4.5.4, Node.js 16.13.2</code>.</p>\\r\\n\\r\\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\\\"http://node.green/\\\" target=\\\"_blank\\\">new ES2020 features</a>.</p>\\r\\n\\r\\n<p><a href=\\\"https://lodash.com\\\" target=\\\"_blank\\\">lodash.js</a> library is included by default.</p>\"], \"racket\": [\"Racket\", \"<p>Run with <code>Racket 8.3</code>.</p>\"]}",
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